〖07山东〗The country has already sent up three unmanned spacecraft,the most recent ________at the end of last March.

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• 〖07山东〗The country has already sent up three unmanned spacecraft,the most recent ________at the end of last March.A.has been launched B.having been launched C.being launched D.to be launched
• The country has already sent up three unmanned spacecraft ,the most recent (having been launched) at the end of last March.括号内have为什么要加ing
• The country has already sent up three unmanned spacecraft,the most recent at the end of lastMarch.A.has beenlaunched B.having been launchedC.beinglaunched D.to be launched我的问题是,这里直接用launched可不可以?为什么要用现在分词的被动,而不能直接用过去分词?
• The country has already sent up three unmanned spacecraft,the most recent ______at the end of last March .A.has been launched B.having been launched C.being launched D.to be launched 选B 解析上说此句前后句没连词,只有逗号是不能连接两个句子的,所以后边the most recent ______ at the end of last March就是独立主格的形式了,在句中做伴随状语
• 1、The country has already sent up three unmanned spacecraft ,the most recent _____ at the end of last March.
• The country has already sent up three unmanned spacecraft,the most recent at the end of lastMarch.
• The country has already sent up three unmanned spacecraft ,the most recent (having been launched) at the end of last Mar
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